/*
 *
 * Copyright (c) 2006-2020, Speedment, Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); You may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.speedment.runtime.compute.expression.predicate;

import com.speedment.runtime.compute.trait.ToNullable;
import org.junit.jupiter.api.Test;

final class NullPredicateTest {

    @Test
    void nullPredicateType() {
        new DummyNullPredicate(NullPredicateType.IS_NULL);
        new DummyNullPredicate(NullPredicateType.IS_NOT_NULL);
        new DummyNullPredicate(NullPredicateType.OTHER);
    }

    private static final class DummyNullPredicate implements NullPredicate<String, String> {

        private final NullPredicateType nullPredicateType;

        private DummyNullPredicate(
                NullPredicateType nullPredicateType) {
            this.nullPredicateType = nullPredicateType;
        }

        @Override
        public NullPredicateType nullPredicateType() {
            return nullPredicateType;
        }

        @Override
        public ToNullable<String, String, ?> expression() {
            return null;
        }

        @Override
        public boolean test(String s) {
            return false;
        }
    }

}
